Tomruksuyu is a neighbourhood of the municipality and district of Samandağ, Hatay Province, Turkey. Its population is 3,722 (2022). Before the 2013 reorganisation, it was a town (belde). It is to the north of the highway connecting Samandağ to Antakya. The distance to Samandağ is 12 kilometres (7.5 mi) and to Antakya is 15 kilometres (9.3 mi).